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美《纽约时报》1980年8月26日报道:在儿童学话和语言的最重要的头3年发育阶段中,容易罹患中耳感染(慢性中耳炎)和暂时性听力丧失。据田纳西大学的孟菲斯卫生科学
The U.S. New York Times reported August 26, 1980: Middle-ear infections (chronic otitis media) and temporary hearing loss are prevalent in the first three years of development of children’s dialect and speech. According to the Memphis Health Sciences of the University of Tennessee